What are SST tubes used for?
What are SST tubes used for?
Serum-separating tubes, also known as serum separator tubes or SSTs, are used in medical clinical chemistry tests requiring blood serum.
When should a SST blood tube be mixed?
NOTE: After the tube has been filled with blood, immediately invert the tube 8-10 times to mix and ensure adequate anticoagulation of the specimen.
What does the purple blood tube test for?
The tests each bottle is used for are the same: the purple one is for cell count, the yellow one is for electrolytes, albumin and LDH, the grey one is for glucose, and blood culture bottles can be used for fluid cultures.
Why is the EDTA tube drawn before a plain tube and citrated tube?
Must be drawn prior to collection of serum tubes to prevent contamination with clot activator and interference with coagulation cascade.
Can clots be present in a tube with anti coagulant?
This is why we sometimes observe clots in blood sample tubes. As we mentioned above, the inside wall of a ‘lavender top’ tube is coated with EDTA which is an anti-coagulant additive that prevents blood clot formation. A common cause of clotted EDTA samples is improper mixing of sample tubes after collection.
What happens when a green topped vacutainer tube is underfilled?
When the ratio of EDTA to blood is too high, as in an underfilled tube, the red cells tend to shrink. As a result, hematocrit, mean cell volume (MCV), and the mean corpuscular hemoglobin concentration (MCHC) will be affected.
How long is a lavender tube good for?
It can be stored for 12, 24 or 36 h prior to processing at 4°C and it can be frozen at −80°C for 20 days and then thawed under controlled conditions.
How long can a BMP sit in fridge?
Whole blood should be allowed to clot and then centrifuged at 1000 × gravitational units (g) for 10 minutes to separate the serum. If there is no centrifuge, the blood can be kept in a refrigerator (4–8°C) until there is complete retraction of the clot from the serum (no longer than 24 hours).
How long can a BMP sit at room temperature?
Specimen stability: Potassium stable 12 hours at room temperature or refrigerated.
Does blood go bad if not refrigerated?
Storage / Shelf Life It should never be refrigerated or placed in a blood cooler. Frozen Cryoprecipitate – The shelf life is 1 year from the date of collection. Single units expire 6 hours from time of thawing.
What color tube is for BMP?
Red-top tube or green-top (lithium heparin) tube is acceptable.
What color tube is CRP?
Collection Instructions: Red-top tube should be centrifuged and the serum aliquoted within 2 hours of collection.
What color tube is used for creatinine?
| CREATININE | |
|---|---|
| ORDERING INFORMATION: | Geisinger Epic Procedure Code: LAB2092 Geisinger Epic ID: 14339 |
| Preferred collection container: | Stat/Line draws: 3 mL green/yellow-top (plasma separator) tube Routine requests/off-site specimens: 3.5 mL gold-top (serum separator) tube |
| Specimen required: | 2 mL serum or plasma; minimum 0.5 mL. |
What color tube is used for EGFR?
Specimen Required Plasma separator tube or serum separator tube. Also acceptable: Lavender (EDTA).
What color tube does potassium go in?
Processing Instructions: Plasma is preferred specimen type. Green Tube/Plasma: Centrifuge after collection. Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
What color tube is used for calcium?
Red-top tube, gel-barrier tube, or green-top (lithium heparin) tube; do not use oxalate, EDTA, or citrate plasma.
What tube is used for TSH?
| TSH | |
|---|---|
| ORDERING INFORMATION: | Geisinger Epic Procedure Code: LAB3204 Geisinger Epic ID: 7020 |
| SPECIMEN COLLECTION | |
| Specimen type: | Plasma or serum |
| Preferred collection container: | Stat/Line draws: 3 mL green/yellow-top (plasma separator) tube Routine requests/off-site specimens: 3.5 mL gold-top (serum separator) tube |
What is the short form of calcium?
Calcium is a chemical element with the symbol Ca and atomic number 20.
What is the normal range for calcium?
The body is set to have a normal amount of calcium (somewhere between 8.6 to 10.3 mg/dL). The parathyroid glands can be thought of as the “calcium thermostat” of the body.